/wp-content/plugins/events-manager/classes/em-taxonomy-frontend.php
PHP | 177 lines | 123 code | 9 blank | 45 comment | 23 complexity | 52094770da8a3afdbffcae8d5a38af1b MD5 | raw file
- <?php
- class EM_Taxonomy_Frontend {
-
- /**
- * The name of this taxonomy, e.g. event-categories, which is defined in child class.
- * @var string
- */
- public static $taxonomy_name = 'EM_TAXONOMY_NAME';
- /**
- * The name of the child class, used for now whilst late static binding isn't guaranteed since we may be running on PHP <5.3
- * Once PHP 5.3 is a minimum requirement in WP, we can get rid of this one.
- * @var string
- */
- public static $this_class = 'EM_Taxonomy_Frontend';
- /**
- * Currently used to instantiate a class of the specific term. Eventually we could just use EM_Taxonomy since these will be standardized functions for any taxonomy.
- * @var string
- */
- public static $tax_class = 'EM_Taxonomy';
- /**
- * Name of taxonomy for reference in saving to database, e.g. category will be used to save category-image.
- * This may differ from the name of the taxonomy, such as event-category can be category
- * @var string
- */
- public static $option_name = 'taxonomy';
- public static $option_name_plural = 'taxonomies';
-
- public static function init(){
- if( !is_admin() ){
- add_filter('taxonomy_template', array(self::$this_class,'template'), 99);
- add_filter('parse_query', array(self::$this_class,'parse_query'));
- }
- }
-
- /**
- * Overrides archive pages e.g. locations, events, event categories, event tags based on user settings
- * @param string $template
- * @return string
- */
- public static function template($template = ''){
- global $wp_query, $wp_the_query, $em_the_query, $post;
- if( is_tax(self::$taxonomy_name) && !locate_template('taxonomy-'.self::$taxonomy_name.'.php') && get_option('dbem_cp_'. self::$option_name_plural .'_formats', true) ){
- $em_the_query = $wp_the_query; //use this for situations where other plugins need to access 'original' query data, which you can switch back/forth.
- $EM_Taxonomy = $GLOBALS[self::$tax_class] = EM_Taxonomy_Term::get($wp_query->queried_object->term_id, self::$tax_class);
- if( self::get_page_id() ){
- //less chance for things to go wrong with themes etc. so just reset the WP_Query to think it's a page rather than taxonomy
- $wp_query = new WP_Query(array('page_id'=> self::get_page_id()));
- $wp_query->queried_object = $wp_query->post;
- $wp_query->queried_object_id = $wp_query->post->ID;
- $wp_query->post->post_title = $wp_query->posts[0]->post_title = $wp_query->queried_object->post_title = $EM_Taxonomy->output(get_option('dbem_'. self::$option_name .'_page_title_format'));
- if( !function_exists('yoast_breadcrumb') ){ //not needed by WP SEO Breadcrumbs, we deal with it in a filter further down - wpseo_breadcrumb_links
- $wp_query->post->post_parent = $wp_query->posts[0]->post_parent = $wp_query->queried_object->post_parent = self::get_page_id();
- }
- $post = $wp_query->post;
- $wp_the_query = $wp_query; //we won't do this to the else section because we should deprecate it due to its instability
- }else{
- //we don't have a categories page, so we create a fake page
- $wp_query->posts = array();
- $wp_query->posts[0] = new stdClass();
- $wp_query->posts[0]->post_title = $wp_query->queried_object->post_title = $EM_Taxonomy->output(get_option('dbem_'. self::$option_name .'_page_title_format'));
- $post_array = array('ID', 'post_author', 'post_date','post_date_gmt','post_content','post_excerpt','post_status','comment_status','ping_status','post_password','post_name','to_ping','pinged','post_modified','post_modified_gmt','post_content_filtered','post_parent','guid','menu_order','post_type','post_mime_type','comment_count','filter');
- foreach($post_array as $post_array_item){
- $wp_query->posts[0]->$post_array_item = '';
- }
- $wp_query->post = $wp_query->posts[0];
- $wp_query->post_count = 1;
- $wp_query->found_posts = 1;
- $wp_query->max_num_pages = 1;
- //tweak flags for determining page type
- $wp_query->is_tax = 0;
- $wp_query->is_page = 1;
- $wp_query->is_single = 0;
- $wp_query->is_singular = 1;
- $wp_query->is_archive = 0;
- }
- //set taxonomy id to globals and query object
- $em_taxonomy_property = 'em_'. self::$option_name .'_id';
- $wp_query->{$em_taxonomy_property} = $wp_the_query->{$em_taxonomy_property} = $GLOBALS[$em_taxonomy_property] = $EM_Taxonomy->term_id; //we assign global taxononmy id just in case other themes/plugins do something out of the ordinary to WP_Query
- //set the template
- $template = locate_template(array('page.php','index.php'),false); //category becomes a page
- //sort out filters
- add_filter('wp_head', 'EM_Taxonomy_Frontend::remove_em_the_content', 10000);
- add_filter('the_content', array(self::$this_class,'the_content')); //come in slightly early and consider other plugins
- //Yoast WP SEO Tweals
- if( defined('WPSEO_VERSION') ){
- add_filter('wpseo_breadcrumb_links',array(self::$this_class,'wpseo_breadcrumb_links'));
- add_filter('wpseo_head', array(self::$this_class,'flip_the_query'), 1);
- add_filter('wpseo_head', array(self::$this_class,'flip_the_query'), 1000000);
- }
- do_action('em_'. self::$option_name .'_taxonomy_template');
- }
- return $template;
- }
-
- public static function the_content($content){
- global $wp_query, $post;
- $em_taxonomy_property = 'em_'. self::$option_name .'_id'; //could be em_category_name or em_tag_name
- $is_taxonomy_page = $post->ID == self::get_page_id();
- if( !empty($GLOBALS[$em_taxonomy_property]) ) $taxonomy_id = $GLOBALS[$em_taxonomy_property];
- if( !empty($wp_query->{$em_taxonomy_property}) ) $taxonomy_id = $wp_query->{$em_taxonomy_property};
- $taxonomy_flag = (!empty($wp_query->{$em_taxonomy_property}) || !empty($GLOBALS[$em_taxonomy_property]));
- if( ($is_taxonomy_page && !empty($taxonomy_id)) || (empty($post->ID) && !empty($taxonomy_id)) ){
- $GLOBALS[self::$tax_class] = EM_Taxonomy_Term::get($taxonomy_id, self::$tax_class);
- ob_start();
- em_locate_template('templates/'.self::$option_name.'-single.php',true);
- return ob_get_clean();
- }
- return $content;
- }
-
- /**
- * Removes the em_content filter from firing, which should be triggered by wp_head after EM has added this filter
- */
- public static function remove_em_the_content(){
- remove_filter('the_content', 'em_content');
- }
-
- /**
- * Parses the query on regular taxonomy archives so events are cronologically ordered.
- * @param WP_Query $wp_query
- */
- public static function parse_query( $wp_query ){
- global $post;
- if( !$wp_query->is_main_query() ) return;
- if( $wp_query->is_tax(self::$taxonomy_name) ){
- //Scope is future
- $today = strtotime(date('Y-m-d', current_time('timestamp')));
- if( get_option('dbem_events_current_are_past') ){
- $wp_query->query_vars['meta_query'][] = array( 'key' => '_start_ts', 'value' => $today, 'compare' => '>=' );
- }else{
- $wp_query->query_vars['meta_query'][] = array( 'key' => '_end_ts', 'value' => $today, 'compare' => '>=' );
- }
- if( get_option('dbem_'. self::$option_name_plural .'_default_archive_orderby') == 'title'){
- $wp_query->query_vars['orderby'] = 'title';
- }else{
- $wp_query->query_vars['orderby'] = 'meta_value_num';
- $wp_query->query_vars['meta_key'] = get_option('dbem_'. self::$option_name_plural .'_default_archive_orderby','_start_ts');
- }
- $wp_query->query_vars['order'] = get_option('dbem_'. self::$option_name_plural .'_default_archive_order','ASC');
- $post_types = $wp_query->get( 'post_type');
- $post_types = is_array($post_types) ? $post_types + array(EM_POST_TYPE_EVENT) : EM_POST_TYPE_EVENT;
- if( !get_option('dbem_cp_events_search_results') ) $wp_query->set( 'post_type', $post_types ); //in case events aren't publicly searchable due to 'bug' in WP - https://core.trac.wordpress.org/ticket/17592
- }elseif( !empty($wp_query->{'em_'.self::$option_name.'_id'}) ){
- $post = $wp_query->post;
- }
- }
-
- public static function get_page_id(){
- return get_option('dbem_'.self::$option_name_plural.'_page');
- }
-
- public static function wpseo_breadcrumb_links( $links ){
- global $wp_query;
- array_pop($links);
- if( self::get_page_id() ){
- $links[] = array('id'=> self::get_page_id());
- }
- $links[] = array('text'=> $wp_query->posts[0]->post_title);
- return $links;
- }
-
- /**
- * Switches the query back/forth from the original query if EM has interferred to add formatting for taxonomy pages.
- * Useful if you want plugins to temporarily access the old WP_Query which indicated we were looking at a taxonomy.
- * For example, with WordPress SEO by Yoast, for wpseo_head we can switch at priority 1 and switch back at a really low priority so meta data is correctly generated.
- * @param string $template
- * @return string
- */
- public static function flip_the_query(){
- global $wp_query, $wp_the_query, $em_the_query;
- if( !empty($em_the_query) ){
- $old_query = $wp_the_query;
- $wp_query = $wp_the_query = $em_the_query;
- $em_the_query = $old_query;
- }
- }
- }